/* Copyright  2009
   @Author
   Richard Changde Yin            e-mail yinchangde@hotmail.com

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef _SERVER_SQL_ALLOC_H
#define _SERVER_SQL_ALLOC_H


#include <my_alloc.h>
#include <m_ctype.h>

class Session;

void init_sql_alloc(MEM_ROOT *root, size_t block_size, size_t pre_alloc_size);

void *sql_alloc(size_t);

void *sql_calloc(size_t);

char *sql_strdup(const char *str);

char *sql_strmake(const char *str, size_t len);

void *sql_memdup(const void * ptr, size_t size);

void  sql_element_free(void *ptr);

char *sql_strmake_with_convert(const char *str, size_t arg_length,
                               const CHARSET_INFO * const from_cs,
                               size_t max_res_length,
                               const CHARSET_INFO * const to_cs,
                               size_t *result_length);


void sql_kill(Session *session, ulong id, bool only_kill_query);
//bool net_request_file(NET* net, const char* fname);
//char* query_table_status(Session *session,const char *db,const char *table_name);

/* server standard class memory allocator */
class Sql_alloc
{
public:
  static void *operator new(size_t size) throw ()
  {
    return sql_alloc(size);
  }
  static void *operator new[](size_t size)
  {
    return sql_alloc(size);
  }
  static void *operator new[](size_t size, MEM_ROOT *mem_root) throw ()
  { return alloc_root(mem_root, size); }
  static void *operator new(size_t size, MEM_ROOT *mem_root) throw ()
  { return alloc_root(mem_root, size); }
  static void operator delete(void *, size_t)
  {  }
  static void operator delete(void *, MEM_ROOT *)
  { /* never called */ }
  static void operator delete[](void *, MEM_ROOT *)
  { /* never called */ }
  static void operator delete[](void *, size_t)
  {  }
#ifdef HAVE_purify
  bool dummy;
  inline Sql_alloc() :dummy(0) {}
  inline ~Sql_alloc() {}
#else
  inline Sql_alloc() {}
  inline ~Sql_alloc() {}
#endif

};

#endif /* _SERVER_SQL_ALLOC_H */
